No. There is no power involved with these headphones. The wires are plugged into a "source" like a phone, digital music player, receiver etc.

Do these comfortably fit a head that wears a hat size of 8 1/2?

Can’t say for sure as I’m 7 3/4 but I’m able to wear them comfortably for 6-8 hrs at a time. Seems plenty fo room to spare

I don't really get it, Fifelio X3 description says "balanced and unbalanced cables included", the balanced one is 2.5mm or 4.4mm?

On the headphone side, both cables are 3.5mm TRS. But on the amp side, yeah, the balanced cable terminates in a 2.5mm balanced. No idea why they made that decision, but I picked up a 2.5 balanced to 4.4 balanced converter that seems to work fine

Philips Fidelio X3 Wired Headphones

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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€ 331.15

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Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎶 Elevate your mix — hear every detail like a pro, feel the vibe like a VIP.

HI RES CERTIFIED AUDIO - Unlock every detail of your tracks with certified high-resolution audio for lifelike, professional listening.
VERSATILE CONNECTIVITY - Seamlessly switch between balanced and unbalanced inputs with included detachable oxygen-free cables and adapters.
IMMERSIVE OPEN BACK DESIGN - Feel the spacious, natural soundstage that puts you in the heart of every mix with acoustically transparent Kvadrat fabric.
ETHICALLY LUXURIOUS COMFORT - Enjoy premium, sustainably sourced Muirhead Scottish leather headband that blends style with conscience.
STUDIO GRADE PRECISION SOUND - Experience crystal-clear highs, smooth mids, and impactful bass with expertly tuned 50mm multi-layer diaphragms.

The Philips Fidelio X3 headphones deliver professional studio-quality sound with 50mm multi-layer polymer diaphragms and an open-back design for a wide, natural soundstage. Certified for Hi-Res Audio, they reveal every nuance in your music with pristine clarity. Crafted with ethically sourced Scottish leather and equipped with versatile detachable cables, these over-ear headphones combine luxury, sustainability, and top-tier performance for discerning audiophiles and professionals alike.

Specifications

ASIN	B0884XTXS8
Additional Features	Lightweight, Tangle Free Cord
Age Range Description	Adult
Antenna Location	Recording
Audio Driver Type	Dynamic Driver
Best Sellers Rank	#60,125 in Electronics ( See Top 100 in Electronics ) #1,433 in Over-Ear Headphones
Brand Name	PHILIPS
Built-In Media	3.5mm 3m cable (balanced), 3.5mm 3m cable (unbalanced), 3.5mm to 1/4 inch jack adapter, cable clip
Cable Features	Detachable
Carrying Case Color	Black
Carrying Case Material	Leather
Color	Black
Compatible Devices	Devices with 3.5 mm audio jack or adaptable to it
Connectivity Technology	Wired
Control Method	Touch
Control Type	Media Control
Customer Package Type	Standard Packaging
Customer Reviews	4.3 4.3 out of 5 stars (924)
Earpiece Shape	around the ear
Enclosure Material	Kvadrat fabric, Leather, Stainless Steel
Frequency Range	5 Hz - 40 kHz
Frequency Response	40000 hertz
Global Trade Identification Number	04895229102781, 14895229102788
Headphone Folding Features	Over Ear
Headphone Jack	3.5 mm Jack
Headphones Ear Placement	Over Ear
Impedance	30 ohm
Item Type Name	Headphones
Item Weight	13.4 ounces
Manufacturer	Philips
Model Name	Overhead Headphones
Model Number	X3/00
Noise Control	None
Number of Items	1
Sensitivity	103
Series Number	6923410710205
Specific Uses For Product	Entertainment, Professional
Style Name	Fidelio \| Wired Hi-Res Audio
UPC	840063201309
Unit Count	1 Count
Warranty Description	1 Year of Parts and Labor
Water Resistance Level	Not Water Resistant
Wireless Technology	Bluetooth

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€ 331.15

Duties & taxes included

In stock

Sold byAmazon FranceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to France.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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The delivery time was excellent, and the packaging was secure.

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